Sodium is the last of the electrolytes. It is responsible for maintaining water balance in your body. It affects your balance, your nerve impulses, and relaxing muscles. It also help nutrients get where they’re supposed to go.
Up until recently, people were consuming too much sodium (salt). But with so many people decreasing their processed food and salt intake, it is possible to see deficiencies. Deficiencies are unlikely as sodium is in many foods including fruits and vegetables of all kinds, meats, and fish. You need anywhere from 10 grams to 25 grams a day depending on your level of activity. Average is one teaspoon a day.